The term comes from the French voyeur, one who looks. Production of such films was profitable, and a number of producers specialised in their production. Patricia Hill Collins, an African-American writer, theorizes that this is derived from a stereotype that those of black descent are promiscuous, and their buttocks are objectified by porn as a result. Many transgender people regard the term shemale as offensive, arguing that it mocks or shows a lack of respect towards the gender identity and gender expression of transgender individuals; in this view, the term emphasizes the biological sex of a person and neglects their gender. Some aspects of the research community distinguish between female ejaculation and what is colloquially known as squirting or gushing. Gonzo pornography is a style of pornographic film that attempts to place the viewer directly into the scene. The term is typically used by the cinematographer within the narrative framework of a pornographic film, and since the 1970s has become a leitmotif of the hardcore genre. Such works have also often been subject to censorship and other legal restraints to publication, display or possession. See also Gay-for-pay. No causal relationship is known between masturbation and any form of mental or physical disorder. Biological anthropologist videos gays Helen lesbian hentai B. Top and dominant are widely recognized for those partner in the relationship or activity who are, respectively, the physically active or controlling participants. However, various groups within society considered such milf xxx depictions immoral, labelling them pornographic, and attempting to have them suppressed under obscenity laws, with varying degrees of success. The fantasy is typically based around one or more larger beings dominating a smaller being. Today, pornographic films can be sold or rented on DVD, shown through Internet and special channels and pay-per-view on cable and satellite, and in adult theaters. Often other friends and community members may witness the signing of such a document in a ceremony, and so parties violating their agreement can result in loss of face, respect or status with their friends in the community.